Datasheet > MAX25222C

MAX25222C

更新时间： 2024-10-29 14:57:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
52页	1380K
描述
集成VCOM缓冲器和ASIL B特性的汽车级4通道TFT-LCD电源

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中文翻译

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MAX25222C 数据手册

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Automotive 4-Channel TFT-LCD Power Supply

with VCOM Buffer and ASIL B Features

MAX25222/MAX25222C

General Description

Benefits and Features

The MAX25222/MAX25222C are 4-channel TFT-LCD

● High Integration

power ICs that provide symmetrical positive AVDD and

• Synchronous Boost Provides AVDD of 4.2V to

10.5V at up to 200mA

negative NAVDD supplies as well as VG

and VG

OFF

gate supplies. In addition, a VCOM buffer with output volt-

age range above and below ground and a temperature

measurement block are integrated.

• NAVDD Inverter Output at up to -200mA

• 15mA VG

Output (7.6V to 20.2V) from 3x

Regulated Charge Pump

• VG

(-18.2V to -5.6V) from Regulated Charge

OFF

These devices contain non-volatile memory so that the

values of all outputs can be calibrated for the lifetime of

the device (maximum five times).

Pump at up to -15mA (Charge-Pump Doubler)

• Controlled Sequencing during Power-On and

Power-Off of All Rails

• VCOM Output Range +1V to -2.49V in 6.83mV

Steps

• NTC Input for Temperature Measurement/

Compensation

Programming is carried out using the built-in I C interface,

which can also be used to read back diagnostic informa-

tion. A stand-alone mode is available after the device has

been programmed.

The temperature sensor interface block measures the

temperature optionally allowing the VCOM output voltage

to be adjusted depending on the measured temperature.

● Low EMI

• 420kHz/2.1MHz Switching Frequency with Spread

Spectrum

The MAX25222/MAX25222C include extensive diagnos-

tics to aid in fulfilling the ASIL B safety level.

● I C Control/Diagnostic Interface with FLTB (Interrupt)

Output

The MAX25222/MAX25222C are available in a TQFN

package and operate in the -40°C to 125°C temperature

range.

• UV Diagnostics on All Outputs

• OV Diagnostics on All Outputs

• Bandgap Reference Out of Range

• Stuck FLTB Pin

• Communication Parity Check

• VCOM DAC Fault

Applications

● Infotainment Displays

● Central Information Displays

● Instrument Clusters

● Versatile

• Non-Volatile Output Voltage Settings on AVDD/

NAVDD, VG , VG

, VCOM, and Sequencing

OFF

• Supports Stand-Alone Operation Mode after

Programming

• Compact 5mm x 5mm TQFN32 Package

● AEC-Q100 Grade 1

Ordering Information appears at end of data sheet.

19-100888; Rev 1; 10/21

12 3 4 5 6 7...52

中文翻译

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与MAX25222C相关器件

型号	品牌	获取价格	描述	数据表
MAX25223	ADI	获取价格	IQ为3.5μA的汽车级36V 3.5A降压转换器
MAX25231	ADI	获取价格	具有3.5μA IQ的36V、1.2A小型降压转换器
MAX25232	MAXIM	获取价格	36V, 3A Mini Buck Converters with 3.5Î¼A IQ
MAX25232	ADI	获取价格	具有3.5uA IQ的36V、3A微型降压转换器
MAX25232ATCA	MAXIM	获取价格	36V, 3A Mini Buck Converters with 3.5Î¼A IQ
MAX25232ATCB	MAXIM	获取价格	36V, 3A Mini Buck Converters with 3.5Î¼A IQ
MAX25232ATCD	MAXIM	获取价格	36V, 3A Mini Buck Converters with 3.5Î¼A IQ
MAX25232ATCE	MAXIM	获取价格	36V, 3A Mini Buck Converters with 3.5Î¼A IQ
MAX25232ATCF	MAXIM	获取价格	36V, 3A Mini Buck Converters with 3.5Î¼A IQ
MAX25232ATCG	MAXIM	获取价格	36V, 3A Mini Buck Converters with 3.5Î¼A IQ

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